Characteristics of the study population in intervention and control areas (aggregated across all Lower Layer Super Output Areas)
| Intervention areas | Matched control areas | |||||||
| Study period | Baseline (Jan 04 to Mar 09) | Implementation period (Apr 09 to Mar 11) | First postintervention period (Apr 11 to Mar 13) | Second postintervention period (Apr 13 to Dec 15) | Baseline (Jan 04 to Mar 09) | Implementation period (Apr 09 to Mar 11) | First postintervention period (Apr 11 to Mar 13) | Second postintervention period (Apr 13 to Dec 15) |
| Mean population of 0–4 year olds | 942 391 | 1 034 782 | 1 069 431 | 1 089 027 | 911 097 | 1 009 239 | 1 057 115 | 1 076 509 |
| Mean percentage of population that is man | 51.2 | 51.1 | 51.2 | 51.2 | 51.2 | 51.2 | 51.2 | 51.3 |
| Total injury admissions by age | ||||||||
| 0 | 13 618 (17.9) | 6364 (18.6) | 6418 (18.3) | 8576 (18.0) | 12 499 (18.7) | 5250 (18.2) | 5656 (18.3) | 7748 (18.2) |
| 1 | 20 235 (26.6) | 9240 (26.9) | 9353 (26.6) | 12 702 (26.7) | 17 715 (26.4) | 7754 (26.9) | 8324 (26.9) | 10 875 (25.5) |
| 2 | 17 691 (23.2) | 7974 (23.3) | 7897 (22.5) | 10 613 (22.3) | 15 330 (22.9) | 6693 (23.2) | 6970 (22.6) | 9650 (22.6) |
| 3 | 13 394 (17.6) | 5870 (17.1) | 6302 (18.0) | 8443 (17.7) | 11 487 (17.1) | 4951 (17.2) | 5490 (17.8) | 7783 (18.2) |
| 4 | 10 801 (14.2) | 679 (13.6) | 4953 (14.1) | 7080 (14.9) | 9669 (14.4) | 4073 (14.1) | 4323 (14.0) | 6418 (15.0) |
| 5 | 390 (0.5) | 169 (0.5) | 193 (0.6) | 256 (0.5) | 315 (0.5) | 127 (0.4) | 149 (0.5) | 214 (0.5) |
| Total | 76 129 | 34 296 | 35 116 | 47 670 | 67 015 | 28 848 | 30 912 | 42 688 |